You cant really do much if you have a heart attack, just depends if your strong enough to get through it alive, or you get the medicine you need quickly.
Take my Grandad for example, he has had 3 heart attacks - 2 major ones and now he has had to have the quadruple heart bypass. But he is about 76 now and he has been smoking since he was 18...that's why i don't smoke.
But anyway interesting to watch and i think it could help a lot of people if pushed out. It will help me.